Estimating Costs of Path Expression Evaluation in Distributed Object Databases. - Gabriela Ruberg; Fernanda Araújo Baião; Marta Mattoso (DEXA, 2002)

DIG: Mm Serviço de Custos e Estatísticas para o Processamento Distribuído de Consultas. - Nicolaas Ruberg; Gabriela Ruberg; Marta Mattoso (SBBD, 2002)

XVerter: Armazenamento e Consulta de Dados XML em SGBDs. - Humberto Vieira; Gabriela Ruberg; Marta Mattoso (SBBD, 2002)

Digging Database Statistics and Costs Parameters for Distributed Query Processing. - Nicolaas Ruberg; Gabriela Ruberg; Marta Mattoso (OTM, 2003)

XVerter: querying XML data with OR-DBMS. - Humberto Vieira; Gabriela Ruberg; Marta Mattoso (WIDM, 2003)

Towards Cost-based Optimization for Data-intensive Web Service Computations. - Nicolaas Ruberg; Gabriela Ruberg; Ioana Manolescu (SBBD, 2004)

Efficiently Processing XML Queries over Fragmented Repositories with PartiX. - Alexandre Andrade; Gabriela Ruberg; Fernanda Araújo Baião; Vanessa P. Braganholo; Marta Mattoso (EDBT Workshops, 2006)

Geração Eficiente de Planos de Materialização para Documentos XML Ativos. - Daniela Pereira; Gabriela Ruberg; Marta Mattoso (SBBD, 2006)

XCraft: boosting the performance of active XML materialization. - Gabriela Ruberg; Marta Mattoso (EDBT, 2008)